Journal of the Chemical Society, Part 1Chemical Society., 1942 |
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Page 115
... removed in a vacuum , and the chloroform washed with dilute sodium carbonate solution and then with water . After drying and removal of chloroform the aldehyde ( 8-9 g . ) was obtained in practically pure condition , m . p . 94-95 ° . A ...
... removed in a vacuum , and the chloroform washed with dilute sodium carbonate solution and then with water . After drying and removal of chloroform the aldehyde ( 8-9 g . ) was obtained in practically pure condition , m . p . 94-95 ° . A ...
Page 116
... removed by distillation at 25 mm . pressure , the residual syrup dissolved in cold benzene ( 40 č.c. ) and the solution filtered from a little impurity and distilled . Benzene and a little phosphorus pentachloride were removed and the ...
... removed by distillation at 25 mm . pressure , the residual syrup dissolved in cold benzene ( 40 č.c. ) and the solution filtered from a little impurity and distilled . Benzene and a little phosphorus pentachloride were removed and the ...
Page 217
... removed by distillation ; a reddish - yellow crystalline mass remained which , recrystallised from methyl alcohol , yielded pale yellow , rectangular prisms , m . p . 192 ° , of 5 : 6 : 2 ′ 3 ′ - pyridoquinolinium methyl sulphate ...
... removed by distillation ; a reddish - yellow crystalline mass remained which , recrystallised from methyl alcohol , yielded pale yellow , rectangular prisms , m . p . 192 ° , of 5 : 6 : 2 ′ 3 ′ - pyridoquinolinium methyl sulphate ...
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Common terms and phrases
absorption acetone acidified alkaline aluminium amine ammonia anhydride aqueous atoms autoxidation base benzene boiling bromine Calc carbon carbonisation CH₂ Chem Chemical chloramine-T chloroform colour colourless needles compound concentrated condensation containing cooled copper crystallised from alcohol crystals decomp decomposition derivative dilute dissolved distilled double bond dried ester evaporated excess experimental extracted with ether filtered filtrate formation formed Found fraction gave glacial acetic acid H₂O heated hydrocarbon hydrochloric acid hydrogen chloride hydrolysis hydroperoxide hydroxyl ions isolated kations ketone light petroleum liquid melting method methyl alcohol methyl iodide micelles mixed m. p. mixture molecular molecule obtained oxidation oxidised oxygen peroxide potassium hydroxide precipitate prepared present prisms pyridine R₁ R₂ reaction refluxed requires residue salt separated sodium hydroxide solasodine solid soluble solvent substance sulphate sulphide sulphuric acid temperature thioindoxyl unsaturated washed water-bath yellow needles yield